* {
  margin: 0;
  padding: 0;
}

:root {
  font-size: 16px;
}

.main {
  max-width: 900px;
  margin: 0 auto;
  margin-top: 50px;
}

.JDT1 {
  width: 100%;
  height: 10px;
  border: #000 solid 1px;
  border-radius: 10px;
}

.JDT2 {
  width: 100%;
  height: 100%;
  background-color: aqua;
  border: #000 solid 1px;
  border-radius: 10px;
  transition: 1000ms;
  transition-timing-function: linear;
}

.word::after {
  cursor: pointer;
  content: '';
  padding: 7px;
  margin-left: 10px;
  background-image: url(../img/voice.png);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.question strong {
  padding: 0 5px;
}

.question code {
  padding-left: 5px;
  font-weight: normal;
}

.question input {
  width: 350px;
  margin-top: 10px;
  margin-left: 10px;
  display: block;
}

@media screen and (max-width: 700px) {
  .main {
    margin-top: 0;
    padding: 0 !important;
    min-height: 100vh;
  }
  .time {
    font-size: 48px;
  }
  .JDT1 {
    height: 24px;
    border-radius: 25px;
  }
  .chapter {
    font-size: 26px;
  }
  .question {
    font-size: 36px;
  }
  .span-input {
    font-size: 36px;
  }
  .btn {
    font-size: 36px;
  }
}
